Drag for multiple harrows.



G. H. GUNDERSON.

DRAG FOR MULTIPLE HARROWS.

APPLICATION FILED MAY 4. 1914.

1,154,763. PatentedSept. 28, 1915.

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G. H. GUNDERSON.

DRAG FOR MULTIPLE HARROWS.

APPLICATION FILED HIM/4.1914.

1,154,763.. PatentedSept. 28, 1915.

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DRAG ron MULTIVPLE'II-IARRQWS,

Specification of Letters Sept ZS, 1915.

Application filed May 4, 1914. Serial No. 836L289.

T 0 all whom it may concern Be it known that I, GUNDER H. GUNDnR- SON, acitizen of United States, residing at F air-child, in the county of EauClaire, State oflVisconsin, have invented certain new and usefulImprovements in Drags for Multiple Harrows; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention is directed to drags for multiple harrows, and hasfor its ob ject to so construct a device of this character that a harrowof conventional form can be readily attached to the drag for harrowing.

A further object of the invention is to provide a drag of this nature soconstructed that the harrow can be lowered for harrowing and raised whenit is desired to remove the harrow from the field.

A still further object of the invention is to provide a drag soconstructed that the outer sections of a multiple harrow can be swungupwardly, simultaneously with the upward movement of the intermediateharrow section.

With these and other objects in view, this invention resides in thenovel features of construction, formation, combination and arrangementof parts to be hereinafter more fully described, claimed and illustratedin the accompanying drawing, in which Figure 1 is a top plan view of thedevice. Fig. 2 is a rear elevation of the device, showing the harrow inits inoperative position. Fig. 3 is a sectional view on line 33 ofFig. 1. Fig. 4 is a similar view on line 4-4 of Fig. 1. Fig. 5 is asimilar view on line 5-5 of Fig. 1. Fig. 6 is a detail perspective viewof the clutch wedge.

Referring to the drawing, the numeral 1 designates the drag whichconsists of a frame 2 which includes side bars 3 and connecting end bars4, the side bars 3 having their rear ends prolonged and provided withbearings 5 for rotatably supporting the axle 6 which has fixed to itsends wheels 7. Connected to the forward end of the frame 2 is a draftbar 8 to which is pivotally connected, b the pin 9, the wheeled truck10, which is provided with a tongue 11 for attaching the draft animals.Mounted upon the end; bars 4 and in spaced relation are boxes 12 inwhich are ournaled the ends of the shafts 13, said shafts having fixedthereto drums 14;, each of which isformed with outer drum sections 15and an intermediate drum section 16, the purpose of which will appearlater. The rear ends of the shafts 13 have fixed thereto gears 17, whichare in mesh and when rotated by the beveled gear 18 fixed to one of saidshafts, the drums will rotate toward each other. Splined upon the axle6. is a beveled gear 19, which is adapted to mesh with thebeveled gear18 when it is ing capable of moving from out of mesh with the beveledgear18 during the expansion of the coil spring 20 which encircles theaxle. The gear 19 is held in mesh with the gear 18 by the wedge clutch21, which is provided with a longitudinal slot 22 for engagement by theaxle 6, said wedge when forced downwardly by placing the foot upon themajor end thereof serving to force the gear 19 in mesh with the gear 18,said gears remaining thus as long as pressure is applied upon the wedge.

Having its rear end fixed to the wedge 21 is a rod 23, the forward endof which is pivotally connected to the forward end bar 4, the purpose ofwhich will appear later.

Rising centrally from the side bars 3 of the frame are uprights 24,.which have rotatably mounted at their upper ends grooved pulleys 25,the purpose of which will appear ater.

The harrow 26 consists of an intermediate section 27 having hingedlyconnected thereto the outer sections 28, the forward ends of eachsection being connected to the draw bar 29, which of necessity is formedfrom hingedly connected sections, said bar being connected to the truck10 by the chains 30 so that when the device is being drawn across thefield the harrow teeth 31 will properly engage the earth.

Having one of their ends fixed to the drum sections 15 are the cords 32.the other ends of which are attached to the intermediate section 27 ofthe harrow so that when the drums 14 are rotated the intermediatesection of the harrow will be lifted from engagement with the ground,and simultaneously therewith the sections 28 of the harrow will be swungupwardly upon the semis 3 desired to rotate the drum, said gear'19 beiwinding upon the drum sections 16, said cords being passed over thepulleys and attached to the sections 28.

During the upward movement of the in-- termediate section 27 of theharrow, the same will contact with the-rod 23, whereupon the wedge 21will be moved upwvardly, so that the beveled gear 19 wil1 move from meshwith the gear 18, thus stopping the rotation of the drums, after whichthe pawl 34 is swung into engagement with one of the gears '17 so as tohold the harrow in its inoperative position.

From the foregoing description itwill be seen that whenthe device isbeing moved across the field and: the harrow is in its operativeposition, and it is desired to lift the same from the ground it is onlynecessary for the operator to force the wedge 21 downwardly whereuponthe drums will be rotated during the movement of the device until the'harrow has reached its proper position, whereupon the wedge will beautomatically'disengaged so as to stop the rotation of the drums. Thusit will be seen that the Copies of this patent may. be obtained forharrow can be easily and quickly raised to its inoperative position whenit is desired to move the same from place to place.

What is claimed is The combination with a drag including a frame, ofshafts rotatably supported upon the frame, drums fixed to the shafts andcomprising outer and intermediate drum sections, a wheeled axlesupporting the rear In testimony whereof, I affix my signature, in thepresence of two witnesses. v

-. GUNDER H. GUNDE RSON.

Witnesses: y

W. F. WVooD,

JULIUS GUNDERSON;

five cents each, by addressing the Commissioner of Patents, Washington,D. C. 1

